curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
sudo apt-get update
curl -fsSL https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/gpg | sudo apt-key add -]
sudo add-apt-repository \
   "deb [arch=amd64] https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/ \
  $(lsb_release -cs) \
  stable"
  sudo apt-get install docker-ce docker-ce-cli containerd.io
  apt-cache madison docker-ce
  sudo docker run hello-world